Trace.Listeners Trace.Listeners Trace.Listeners Trace.Listeners Property

Definition

Gets the collection of listeners that is monitoring the trace output.

public:
 static property System::Diagnostics::TraceListenerCollection ^ Listeners { System::Diagnostics::TraceListenerCollection ^ get(); };
public static System.Diagnostics.TraceListenerCollection Listeners { get; }
member this.Listeners : System.Diagnostics.TraceListenerCollection
Public Shared ReadOnly Property Listeners As TraceListenerCollection

Property Value

Examples

The following example creates a ConsoleTraceListener that outputs to the console screen. The code then adds the new listener to the Listeners.

// Create a ConsoletTraceListener and add it to the trace listeners.
#if defined(TRACE)
ConsoleTraceListener^ myWriter = gcnew ConsoleTraceListener( );
Trace::Listeners->Add( myWriter );
#endif
/* Create a ConsoleTraceListener and add it to the trace listeners. */
ConsoleTraceListener myWriter = new
   ConsoleTraceListener();
Trace.Listeners.Add(myWriter);

' Create a ConsoleTraceListener and add it to the trace listeners. 
Dim myWriter As New ConsoleTraceListener()
Trace.Listeners.Add(myWriter)

Remarks

The listeners produce formatted output from the trace output. By default, the collection contains an instance of the DefaultTraceListener class. If you want to remove the default listener, call the Remove method, and pass it the instance of the DefaultTraceListener. To redirect output to the console window, add an instance of the ConsoleTraceListener class.

Note

The Listeners collection is shared by both the Debug and the Trace classes; adding a trace listener to either class adds the listener to both.

Security

SecurityPermission
for operating with unmanaged code. Security action: Demand. Associated enumeration: UnmanagedCode

Applies to

See also